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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Testing, Debugging, and Deployment | 20% | - Debugging and error handling across layers - Deployment strategies, CI/CD, and change management - Advanced testing strategies and test frameworks |
| Topic 2: User Interface Development | 20% | - Optimize UI performance and usability - Build complex Lightning Web Components and Aura Components - Implement advanced Visualforce functionality |
| Topic 3: Performance and Data Management | 18% | - Governor limits optimization and best practices - Optimize queries and handle large data volumes - Data modeling and complex data operations |
| Topic 4: Logic, Process Automation, and Integration | 27% | - Complex business logic and automation design - Advanced Apex programming and transaction management - REST/SOAP API, Platform Events, and external integrations - Asynchronous Apex: future, queueable, batch, scheduled |
| Topic 5: Advanced Developer Fundamentals | 15% | - Design and maintain scalable, reusable code - Apply security best practices in development - Work with localization, multi-currency, and global features |
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NEW QUESTION # 41
Consider the following code snippet:
The Apex method is executed in an environment with a large data volume count for Accounts, and the query is performing poorly. Which technique should the developer implement to ensure the query performs optimally, while preserving the entire result set?
Answer: C
Explanation:
When dealing with large data volumes in Salesforce and ensuring optimal performance for queries, it's important to choose an approach that both handles the data volume efficiently and retrieves the complete result set.
Option D is correct because using the Database.QueryLocator method is a best practice for handling large data volumes. It is typically used with batch Apex, which can process records in batches, thus reducing the likelihood of hitting governor limits. It's designed to handle very large data sets that would otherwise exceed normal SOQL query limits.
Option A is incorrect because creating a formula field doesn't improve the performance of the query. It simply creates a new field that combines existing data, but it does not inherently optimize the query execution.
Option B is incorrect because breaking down the query into two parts and joining them in Apex could potentially be less efficient and would require additional code to manage the combined result sets. This approach does not leverage the built-in Salesforce features designed to handle large data volumes.
Option C is incorrect because the @Future annotation makes the method execute asynchronously, but it does not help with query performance or large data volume management.
s:
Salesforce Documentation on Working with Very Large SOQL Queries: Working with Very Large SOQL Queries Salesforce Documentation on Using Batch Apex: Using Batch Apex
NEW QUESTION # 42
An Apex trigger and Apex class increment a counter, Edit __C, any time the Case is changed.
A)
B)
C)
D)
Answer: B
NEW QUESTION # 43
When the code is executed, the callout is unsuccessful and the following error appears within the Developer Console:
System.CalloutException: Unauthorized endpoint
Which recommended approach should the developer implement
to resolve the callout exception?
Answer: C
Explanation:
The System.CalloutException with the message "Unauthorized endpoint" typically indicates that the endpoint to which the callout is being made has not been authorized in the Salesforce org's security settings. To resolve this, the developer must navigate to the Remote Site Settings in the Salesforce Setup and add the endpoint URL as a new remote site. This step is necessary to authorize the Salesforce org to send outbound callouts to that specific endpoint. Annotating with @Future(Callout=true) is necessary for making callouts from methods that perform DML operations, but it does not resolve endpoint authorization issues. Similarly, changing the access modifier or using SetHeader() for authentication would not address the unauthorized endpoint error.
Remote Site Settings
Apex Developer Guide: Making Callouts Using Apex
NEW QUESTION # 44
A developer created a Lightning web component that uses a Lightning_record_edit_fom to collect Information about Leads. Users complain that they only see one error message at a time about their input when trying to save a Lead record.
Which best practice should the developer use to perform the validations on more than one held, thus allowing more than one error message to be displayed simultaneously?
Answer: C
Explanation:
When users need to see multiple error messages at a time related to their input on a form, client-side validation is the preferred method. This allows immediate feedback on the input fields without the need to submit the form to the server.
Option B (Client-side validation) is correct because it enables validation of multiple fields before submitting the form, allowing users to see all error messages at once for the fields that fail validation.
Options A (Apex REST), C (Custom validation rules), and D (Next Best Action) are not directly related to the validation of form inputs in the context of a Lightning web component.
Lightning Web Components Developer Guide: Lightning Web Components and Salesforce Data
NEW QUESTION # 45
A Salesforce developer is hired by a multi-national company to build a custom Lightning application that shows employees their employment benefits and earned commissions over time. The application must acknowledge and respect the user's locale context for dates, times, numbers, currency, and currency symbols.
When using Aura components, which approach should the developer implement to ensure the Lightning application complies with the user's locale?
Answer: A
Explanation:
The $Locale value provider should be used to ensure the Lightning application respects the user's locale for dates, times, numbers, currency, and currency symbols. This global value provider gives components access to locale formats and labels, which are automatically rendered according to the user's locale settings.
NEW QUESTION # 46
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